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Product Description
May 27, 2026

Product Description

The 3IF661.9 is a plug-in fieldbus interface module tailored for electromechanical control applications under B&R SYSTEM 2005. It features one galvanically isolated RS485 port that works as a PROFIBUS DP slave interface. Built with industrial isolation, surge protection and excellent electromagnetic compatibility, it delivers steady data transmission amid complex interference generated by electromechanical equipment. This module expands fieldbus access capability for the control system and realizes reliable connection between main controllers and various on-site electromechanical devices.

Description

Product Description

The 3IF661.9 is a plug-in fieldbus interface module tailored for electromechanical control applications under B&R SYSTEM 2005. It features one galvanically isolated RS485 port that works as a PROFIBUS DP slave interface. Built with industrial isolation, surge protection and excellent electromagnetic compatibility, it delivers steady data transmission amid complex interference generated by electromechanical equipment. This module expands fieldbus access capability for the control system and realizes reliable connection between main controllers and various on-site electromechanical devices.

Basic Information

  • Model: 3IF661.9

  • Manufacturer: B&R Industrial Automation

  • Series: SYSTEM 2005 Electromechanical Interface Module

  • Type: PROFIBUS DP Slave Interface Module

  • Installation: Plug-in structure, compatible with slots of 2005 series CPU and interface modules

  • Galvanic Isolation: 2.5 kV isolation between communication channel and internal circuit

  • Protection Class: IP20 when installed inside control cabinet

  • Weight: Approximately 0.12 kg

  • Dimensions: 127 × 76 × 25 mm

  • Certifications: CE, cULus, EAC

  • Origin: Austria

Function and Positioning

This module acts as a dedicated fieldbus connection unit for electromechanical automation systems. It enables the host controller to access PROFIBUS DP networks and communicate with upper-level master stations, servo drives, motors, encoders and other electromechanical peripherals. It supports standard PROFIBUS DP protocol and multi-drop network topology. The isolation design effectively suppresses interference from motor operation and mechanical movement, avoiding signal distortion and equipment failure. It shares communication workload of the main CPU, improves overall system operating efficiency, and serves as a vital link for networking and integration of electromechanical control systems.

Core Performance Parameters

  • Communication Port: 1 D-Sub 9-pin RS485 interface for PROFIBUS DP

  • Operating Mode: PROFIBUS DP Slave

  • Maximum Baud Rate: 12 Mbps for PROFIBUS DP, 115.2 kBaud for general RS485 communication

  • Default Serial Configuration: 8 data bits, 1 stop bit, no parity

  • Status Indicators: LED indicators for data transmission, reception and network fault

  • Bus Terminal: Built-in switchable termination resistor

  • Power Supply: 5 VDC supplied by system backplane

  • Power Consumption: Maximum 1.5 W

  • Operating Temperature: 0 °C to +60 °C

  • Storage Temperature: -40 °C to +85 °C

  • Relative Humidity: 5% to 95%, non-condensing

  • Maximum Transmission Distance: 1200 meters at low baud rate

General Compatible Accessories

  • Host Modules: B&R 2005 series CPU modules and 3IF060.6, 3IF260.60-1 interface modules

  • System Backplane: B&R BP2005 series backplane

  • Connection Cables: Shielded PROFIBUS cables and RS485 twisted-pair cables for electromechanical field wiring

  • Matching Peripherals: PROFIBUS master controllers, servo drives, frequency converters, encoders, sensors and electromechanical actuators

  • Configuration Software: B&R Automation Studio for parameter setting, network debugging and equipment diagnosis

  • Spare Parts: D-Sub connectors, mounting fasteners, bus terminators and anti-interference accessories

Applicable Equipment Fields

This module is widely used in electromechanical automation scenarios that require PROFIBUS DP communication. It applies to CNC machine tools, robotic equipment and automated production lines. It also fits packaging machinery, textile machinery, printing equipment and plastic processing machines. Besides, it can be adopted in pharmaceutical production lines, food processing equipment, energy equipment and distributed electromechanical monitoring and control systems.


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